Wilson Combat Ultima-Lube II Lite Oil is a blend of petroleum and synthetic lubricants specially formulated to ensure optimal performance of any firearm and inhibit wear. Ideal for high-tech semi-auto weapons made of conventional steels, aluminum alloys, or stainless steel. It features very low viscosity, penetrates hard-to-reach areas, and is perfect for extreme cold weather use. Wilson Combat is renowned for its innovative firearm solutions.